Mozilla Corp. yesterday warned users about a worm that slipped into Firefox's Vietnamese language add-on and went undetected for months.

"Nov. 2, 1988, started as an ordinary day at Goddard Space Flight Center where I was working in the data communications branch. By the end of the day ... well, actually, that day never ended. We just kept fighting to bring our servers and networks back to life. Our SunOS and VAX/BSD systems, which were connected to the Internet, had slowed to a stop."

Security vendor Symantec has warned that the Storm worm, the malware which contributes to the Storm botnet, is continuing to evolve and now has two further possible avenues of attack.

Computer users are increasingly at risk of being lured to Web sites that surreptitiously download malicious software onto their machines, but stolen or lost laptops still represent most of the security breaches reported, according to a new Microsoft report.

A computer virus that struck the San Diego Superior Court system last week has been identified and contained, but court computers continue to be shut down while the problem is fixed, officials said Monday.